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SYMPTOM TROUBLESHOOTING 07–03–3 07–03 End Of Sie NO.3 AIRFLOW MODE DOES NOT CHANGE A3U070301038W05 Diagnostic procedure 2 CHECK TO SEE WHETHER MALFUNCTION • Turn ignition switch to ON position. • Turn fan switch on. • Recirculate air inside vehicle. • Does fan in blower unit rotate smoothly? Yes Go to Step 4. No Go to next step. 3 INSPECT BLOWER UNIT • Inspect fan in blower unit. case? — Is fan free of foreign material and obstructions? • Is fan okay? Yes Go to next step. No Remove obstruction, repair or replace fan and blower unit 4 INSPECT BLOWER UNIT INTAKE VENT • Is blower unit intake vent clogged? Yes Remove obstruction, then go to next step. No Inspect if there are any obstructions in passage between 5 VERIFY THAT MALFUNCTION SYMPTOM • Does air blow out? Yes Troubleshooting completed. No Recheck malfunction symptoms, then repeat from Step 1 if STEP INSPECTION ACTION 3 Airflow mode does not change. DESCRIPTION • Malfunction in heater unit and/or climate control unit airflow system. POSSIBLE CAUSE • Heater unit airflow mode link, airflow mode crank, airflow mode rod, airflow mode wire, wire clamp • Climate control unit rack-and-pinion, airflow mode wire malfunction (Step 3) • Malfunction in one or more heater unit doors (Steps 4, 5) STEP INSPECTION ACTION 1 INSPECT HEATER UNIT AIRFLOW MODE • Inspect heater unit airflow mode links, airflow securely and in the proper position? — Is wire clamp free of deformation? • Are above items okay? Yes Go to next step. No Apply grease or install links, cranks and rods securely in 2 VERIFY THAT AIRFLOW MODE WIRE FROM • Is airflow mode wire positioned securely and Yes Go to next step. No Adjust airflow mode wire or install correctly, then go to Step 3 INSPECT CLIMATE CONTROL UNIT • Inspect climate control unit. correct direction on rack? • Are above items okay? Yes Go to next step. No Properly engage rack-and-pinion or install airflow mode wire 4 INSPECT HEATER UNIT AIRFLOW MODE • Is there any foreign material or obstructions Yes Remove obstruction, then go to Step 6. No Go to next step. 5 VERIFY THAT ALL AIRFLOW MODE DOORS • Are all doors within heater unit securely and Yes Inspect each door for cracks or damage, then go to next No Install malfunction doors securely in proper position, then go 1712-1U-01G(07-03).fm 3 ページ 2001年6月29日 金曜日 午前10時19分 |